Eco-Adventure Riviera Maya, Mexico Eco-adventures abound in Mexico’s Riviera Maya. At Hidden Worlds, not far from Tulum, we snorkel underground rivers, pedal a SkyCycle at tree-top height, and fly along a zipline. What we especially like about Hidden Worlds are the choices and the small group experience.

Explore Cenotes, Riviera Maya, MexicoMexico’s Riviera Maya is known for its hundreds of cenotes, or underground rivers. At Xplor, a $20 million eco-adventure park, raft through a winding cenote, at Rio Secreto walk and swim and at Alux, dine inside one.

Explore Riviera Maya's Underground RiversThe Riviera Maya, which stretches along Mexico’s coast for 86-miles from just south of Puerto Morelos to Punta Allen, is known for its hundreds of cenotes. However, Río Secreto, opened to the public in April 2008,is a jewel in region’s extensive system of underground rivers.

Top Resorts: Grand Velas Riviera Maya, Mexico The Grand Velas Riviera Maya Resort is for those who like all-inclusive resorts and, especially for those who don’t. Situated on 200 acres in the Riviera Maya not far from Playa del Carmen, Grand Velas is a rarity: an all-inclusive property that’s earned AAA’s highest rating of Five Diamonds.

Tulum and Xel-Há, Riviera Maya, Mexico From atop the cliffside Castillo (castle)in Tulum, the crashing waves and the calls of the sea birds conjure visions of this once-vital Maya sea port. Combine a cultural visit here with river tubing and swimming with dolphins at Xel-Ha,a nearby eco-adventure park.